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  • Whatman Grade 934-AH borosilicate glass microfiber filters fromCytiva are smooth water quality filters with high retention efficiency. Grade 934-AH filters are often used in total suspended solids analysis. Smooth surface for efficient precipitate recovery Nominal particle retention of…

  • Cytiva Whatman Grade 42 quantitative papers have the finest retention of all Whatman ashless filter paper grades. Grade 42 is designed for gravimetric analysis and sample preparation for instrumental analysis. Ashless: 0.007% ash maximum Fine (2.5 µm) nominal particle retention rating,…

  • A standard grade clarifying filter excellent for cloudy suspensions and for water and soil analysis. These cellulose filters are used in qualitative analytical techniques to determine and identify materials. Prepleated qualitative filters are also available, which give improved flow rate and…

  • Grade GF/C is the standard filter in many parts of the world for the collection of suspended solids in potable water and natural and industrial wastes. Grade GF/C: 1.2 µm Combines fine particle retention with good flow rate. Fast and efficient clarification of aqueous liquids…

  • A standard grade filter used when high flow rates in air pollution monitoring are required and the collection of fine particles is not critical. These cellulose filters are used in qualitative analytical techniques to determine and identify materials. Prepleated qualitative filters are also…

  • A standard grade filter for boiler water analysis. These cellulose filters are used in qualitative analytical techniques to determine and identify materials. Prepleated qualitative filters are also available, which give improved flow rate and increased loading capacity compared to equivalent…

  • Cytiva Whatman Grade 41 environmental pollution papers are among the fastest filter papers in the Whatman ashless range. This gravimetric filter is well suited for quantitative analysis of soil and air. Extremely low ash content (0.007% ash maximum) 20 µm nominal particle retention rating Fast…

  • A general purpose creped filter for less critical routine analysis. Widely used to assay sucrose in cane sugar and within pharmaceutical laboratories for routine filtration. A general purpose creped filter for less critical routine analysis. Widely used to assay sucrose in cane sugar and within…

  • The thinnest of all Whatman filter papers with hardened and highly glazed surface, offering slow flow rate. Hardened low ash: 0.015% ash maximum. These filters are treated with a strong acid to remove trace metals and produce high wet strength and chemical resistance. Thesy are particularly…

  • Intermediate in speed and retention between Grades 1 and 4. Intermediate in speed and retention between Grades 1 and 4. These extremely strong filter papers have a high wet strength due to the addition of a small quantity of chemically stable resin. Normal qualitative applications will not…

  • 1.6 µm Retention Efficient retention of small size particles to 1.6 µm Extremely high flow rate; filtration takes place both vertically and laterally through the filters High loading capacity, which continues to filter efficiently for a greater extended period …

  • A widely used standard grade filter paper for routine applications with medium retention and flow rate. It covers a wide range of laboratory applications and is frequently used for clarifying liquids. These cellulose filters are used in qualitative analytical techniques to determine and…

  • Cytiva Whatman Grade GF/A glass microfiber filters feature fine retention. GF/A filters are suitable for water quality parameter measurement and air filtration applications. Suitable for a wide range of liquid and air filtration applications Nominal particle retention of 1.6 µm …

  • A standard grade filter used when high flow rates in air pollution monitoring are required and the collection of fine particles is not critical. A standard grade filter used when high flow rates in air pollution monitoring are required and the collection of fine particles is not critical. These…

  • Cytiva thinnest Whatman brand hardened filter paper, highly glazed Grade 50 supports vacuum filtration in Büchner funnels or Hirsch funnels and enables strong retention of very fine crystalline precipitates. Thinner filter design (average thickness 115 µm) than most Büchner…

  • Whatman Grade 934-AH ready-to-use (RTU) filters are the time-saving version of Cytiva 934-AH filters, which are widely used for total suspended solids analysis. Prewashed, preweighed RTU filters eliminate pretreating steps otherwise required by Standard Method 2540D Fine particle…

  • Compared with quadrant-folded filters, Cytiva Whatman Grade 2V pre-folded filter paper exposes extra surface area, which enables a higher loading capacity and shorter filtration time. Medium flow and nominal particle retention rating of 8 µm Herzberg filtration speed of 240 s Fluted…

  • Cytiva high-purity quartz microfiber filters are used in many air sampling filter applications, including sampling of acidic gases, stacks, flues, and aerosols. Filters are suitable for PM-10 sampling and analysis. Temperature resistant up to 800°C Binder-free Temperature resistant up to…

  • A prepleated filter used for many routine analytical applications in different industries (e.g., particle separation from food extracts or filtration of solids from digested environmental samples, e.g., for ICP/AAS analysis). Savings in time required to quadrant-fold circles to fit conical…

  • Cytiva Whatman Grade 540 is a high-purity, acid-treated cellulose lab filter paper. Mechanically strong Grade 540 is well suited for quantitative or gravimetric analysis of strongly acidic or alkaline samples. Acid-treated for high wet-strength Extremely low ash content (0.006% ash…

  • A prepleated filter for use with a conical filter funnel, offers fast filtration and high loading capacity for analysis involving coarse particles or gelatinous precipitates. Highest retention among standard filters Slow flow rate Fine-particle retention For qualitative analysis Highest…

  • A standard grade filter used for monitoring specific contaminants in the atmosphere and in soil testing. A standard grade filter used for monitoring specific contaminants in the atmosphere and in soil testing. These cellulose filters are used in qualitative analytical techniques to determine and…

  • Supreme quantitative filter papers featuring fast filtration of coarse particles and gelatinous precipitates in acid/alkali solutions during gravimetric analysis. Hardened ashless: 0.006% ash maximum. These filters are acid-hardened to give high wet strength and chemical resistance with…

  • Grey, creped surface provides optical contrast for white or dark filtrates Retains coarse or gelatinous precipitates (20-25 µm) High filtration speed High wet strength 0.28 mm thick High-loading capacity filters are used extensively in sugar and pharmaceutical…

  • Efficient retention of small size particles to 0.7 µm Extremely high flow rate; filtration takes place both vertically and laterally through the filters High loading capacity, which continues to filter efficiently for a greater extended period Highly resistant to chemical…

  • Cytiva Whatman Grade 54 filter paper has high wet strength and a larger nominal particle retention rating than comparable Büchner filtration papers, enabling fast vacuum filtration of coarse precipitates. Acid-treated for high wet-strength and chemical resistance Large nominal particle…

  • Whatman Grade 589/2 filters fromCytiva are used in routine quantitative analyses, including analysis of aqueous suspension in paper, flour analysis, and sand content quantification. High purity ( Retention of medium fine precipitates, such as grains of sand Herzberg filtration speed of 140 s* …

  • A standard grade filter used for a wide variety of analytical routine applications in different industries like food testing (e.g., determination of fat content) or removal of carbon dioxide and turbidity from beverages (e.g., beer analysis). A standard grade filter used for a wide variety of…

  • A world standard for critical gravimetric analysis with the finest particle retention of all Whatman cellulose filter papers from Cytiva . Ashless: 0.007% ash maximum for Grades 40 to 44. These are very pure filters suitable for a wide range of critical analytical filtration procedures. …

  • Cytiva Whatman GMF 150 prefilters are multilayer graded density filters for rapid and efficient filtration of samples with high solids content. Compared to an unprotected membrane, greater sample volume can be filtered Higher particulate loading capacity and faster flow rates than uniform…

  • White filter paper with printed green lines for optical assessment. White filter paper with printed green lines for optical assessment. For routine investigations of foreign substances in a variety of sample types.

  • Cytiva Whatman Grade 5V fine particle filter retains particles as small as 2.5 µm for qualitative analysis. This cellulose filter paper is fluted for ease-of-use. Has highest nominal particle retention efficiency of fine particles in Whatman qualitative cellulose paper range Slow filtration…

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